Table 5
Absolute abundances in units of 12 + log (Xi/H).
| He | C | N | O | Si | Mg | Fe | ΣCNO | |
|---|---|---|---|---|---|---|---|---|
| Cyg X-1 | 11.3 | 8.52 | 8.68 | 8.57 | 7.89 | 7.85 | 7.72 | 9.07 |
| Sun(1) | 10.93 | 8.43 | 7.83 | 8.69 | 7.51 | 7.6 | 7.5 | 8.92 |
| B stars in solar neighborhood(2) | 10.99 | 8.33 | 7.79 | 8.76 | 7.5 | 7.56 | 7.52 | 8.93 |
| B stars in Cyg OB3(3) | 8.15 | 7.68 | 8.54 | 7.22 | 7.63 | 7.33 | 8.73 |
Notes. (1)From Asplund et al. (2009). (2)Average abundances of B stars in the solar neighborhood from Nieva & Przybilla (2012). (3)Average abundances of B stars in the Cyg OB3 from Daflon et al. (2001). Here, Mg and Fe are LTE abundances, and C, N, O, and Si are non-LTE abundances.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.